send a message using raw tcp sockets in node js

sendWithHologram

const Net = require('net');

const HologramKey = process.env.HOLOGRAM_KEY
const HologramHost = 'cloudsocket.hologram.io'
const HologramPort = '9999'

let sendWithHologram = function(payload, topic){
  let HologramClient = new Net.Socket();

  HologramClient.connect({ port: HologramPort, host: HologramHost }, function() {
    let p = JSON.stringify({"k":HologramKey,"d":payload,"t":topic})
    HologramClient.write(p);
    HologramClient.end();
    HologramClient.destroy();
  });

  HologramClient.on('error', function(ex) {
    console.log("hologram error");
    console.log(ex);
  });

}